#include <bits/stdc++.h>
using namespace std;
int main()
{
    freopen("duel.in","r",stdin);
    freopen("duel.out","w",stdout);
    int n,a[10005];
    cin>>n;
    int sum=n;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    sort(a+1,a+n+1);
    for(int i=2;i<=n;i++)
    {
        for(int j=1;j<i;j++)
        {
            if(a[i]>a[i-j])
            {
                a[i-j]=0;
                sum--;
                break;
            }
        }
    }
    cout<<sum;
    return 0;
}
